Which of the following statements is correct about nucleoside analogues: Select one or more options: - Nucleoside analog

[correctanswer]

Which of the following statements is correct about nucleoside
analogues:
Select one or more options:
- Nucleoside analogues are classified as antimetabolites.
- A typical structural difference of a nucleoside analog used as
a drug compared to the bodily nucleoside that it resembles is that
it lacks an amino group, which means that the DNA molecule cannot
be built on.
- A typical structural difference of a nucleoside analog used as
a drug compared to the bodily nucleoside it resembles is that it
lacks a hydroxyl group, which means that the DNA molecule cannot be
further built up.
- Nucleoside analogues always affect both cell and virus
replication.
- Nucleoside analogues can be used as medicines against several
viral infections.
- Many cytidine analogues are used as drugs but no guanosine
analogues.
- Many guanosine analogues are used as medicines but no cytidine
analogues.
- A typical structural difference of a nucleoside analog used as
a drug compared to the bodily nucleoside it resembles is that it
lacks a phosphate group, which means that the DNA molecule cannot
be built on.